循环型农户系统能量流投入产出调控机理分析

A Case of Study on Energy Control in a Recycle Agricultural Household System based on Input-output Model

运用投入产出模型分析一个小循环型农业生态系统能量流或物质流的直接与间接流动过程,来考察系统活动中能量流或物质流的来源与去向,实现在农业结构调整中合理规划各部门的投入,通过控制农业系统流动过程中可控制能量流或物质流的损耗量,减少系统外能量流或物质流输入,降低系统废弃物的排放水平,促进外部资源节约与环境的保护,最终可实现该农业生态系统经济、生态和社会效益水平的持续增长。

This article attempts to analyze the mobile process of energy flow or material flow in a lesser circulation of agricultural ecosystem based on Input - Output Model. The finding shows if the energy flow or material flow has been controlled effectively during the utilization process , then, the energy and material input will be saved and less castoff will be output. Thus, it is necessary to spread the typical recycle agricultural ecosystem on feasible region in China for the sustainable development of human.